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undergoes rapid proliferation and forms numerous processes, the chorionic villi, which invade and destroy the uterine decidua and at the same time absorb from it nutritive materials for the growth of the embryo. They undergo several stages, depending on their composition.
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The bulk of the villi consist of connective tissues that contain blood vessels. Most of the cells in the connective tissue core of the villi are fibroblasts. Macrophages known as
847:
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In early miscarriage, the finding of chorionic villi in vaginal expulsions is often the only definite confirmation that there was an intrauterine pregnancy rather than an
400:
419:
538:"European Biotech Company Biocell Center Opens First U.S. Facility for Preservation of Amniotic Stem Cells in Medford, Massachusetts | Reuters"
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768:"Droplet-digital PCR assay to detect Merkel cell polyomavirus sequences in chorionic villi from spontaneous abortion affected females"
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Recent studies indicate that the chorionic villi may be susceptible to bacterial and viral infections. Recents findings indicate that
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carry embryonic blood to the villi. After circulating through the capillaries of the villi, blood returns to the embryo through the
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Contini C, Rotondo JC, Magagnoli F, Maritati M, Seraceni S, Graziano A, Poggi A, Capucci R, Vesce F, Tognon M, Martini F (2018).
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17:
657:"Investigation on silent bacterial infections in specimens from pregnant women affected by spontaneous miscarriage"
606:"Investigation on silent bacterial infections in specimens from pregnant women affected by spontaneous miscarriage"
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Larsen, William J. : Human embryology. Sherman, Lawrence S.; Potter, S. Steven; Scott, William J. 3. ed.
267:, the villi cover the entire chorion, and are almost uniform in size—but after then, they develop unequally.
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Floating villi float freely in the intervillous space. They exhibit a bi-layered epithelium consisting of
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can infect the chorionic villi tissues of pregnant women, thereby impacting pregnancy outcome. DNA from
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711:"Footprints of BK and JC polyomaviruses in specimens from females affected by spontaneous abortion"
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Anchoring (stem) villi stabilize the mechanical integrity of the placental-maternal interface.
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1007:
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8:
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559:"Europe's Biocell Center opens Medford office – Daily Business Update – The Boston Globe"
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128:. Thus, villi are part of the border between maternal and fetal blood during pregnancy.
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Knowledge articles incorporating text from the 20th edition of Gray's
Anatomy (1918)
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Tagliapietra A, Rotondo JC, Bononi I, Mazzoni E, Magagnoli F, Maritati M (2020).
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Tagliapietra A, Rotondo JC, Bononi I, Mazzoni E, Magagnoli F, Maritati M (2019).
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334:, is studying and testing these types of stem cells. Chorionic stem cells, like
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Contini C, Rotondo JC, Magagnoli F, Maritati M, Seraceni S, Graziano A (2019).
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has been detected in chorionic villi from pregnant women and women affected by
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125:
98:
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grow into the mesoderm, and in this way the chorionic villi are vascularized.
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http://www.med.umich.edu/lrc/coursepages/M1/embryology/embryo/06placenta.htm
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discovered a new method of prenatal diagnosis using chorionic villi.
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has also been detected in the same tissues but to a lesser extent.
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The chorionic villi are at first small and non-vascular.
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showing chorionic villi. Intermediate magnification.
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to provide maximal contact area with maternal blood.
428:showing chorionic villi. Very high magnification.
225:The villi increase in size and ramify, while the
152:Villi can also be classified by their relations:
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468:Human embryo of about 28 days, with yolk-sac.
338:, are uncontroversial multipotent stem cells.
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279:Histopathology of a chorionic villus, in a
263:Until about the end of the second month of
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456:Transverse section of a chorionic villus.
257:trophoblast, mesoderm, and blood vessels
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381:of chorionic villi after a miscarriage.
116:perspective, and are, by definition, a
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496:This article incorporates text in the
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322:Chorionic villi are a rich source of
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310:In 1983, an Italian biologist named
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27:Villi that sprout from the chorion
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856:Membranes of the fetus and embryo
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108:They are an essential element in
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580:"The Ticker - BostonHerald.com"
330:, a biotech company managed by
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480:Villitis of unknown etiology
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504:of the 20th edition of
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444:Section through the embryo.
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300:Use for prenatal diagnosis
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306:Chorionic villus sampling
235:trophoblast and mesoderm
148:Tertiary chorionic villi.
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886:Intermediate trophoblast
356:Merkel cell polyomavirus
140:Primary chorionic villi.
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78:Anatomical terminology
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295:Clinical significance
278:
147:
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118:product of conception
101:that sprout from the
1013:Reichert's membrane
881:Syncytiotrophoblast
336:amniotic stem cells
197:Period of gestation
166:syncytiotrophoblast
914:Intervillous space
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291:are also present.
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122:umbilical arteries
120:. Branches of the
18:Primary stem villi
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1008:Heuser's membrane
785:10.1002/jcp.29213
727:10.1002/jcp.27490
674:10.1002/jcp.26952
623:10.1002/jcp.26952
393:Additional images
387:ectopic pregnancy
370:Early miscarriage
348:ureaplasma parvum
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16:(Redirected from
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954:Umbilical artery
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778:(3): 1888–1894.
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582:. Archived from
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245:umbilical artery
243:Branches of the
229:grows into them.
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160:with overlaying
158:cytotrophoblasts
114:histomorphologic
84:edit on Wikidata
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1023:Gestational sac
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964:Wharton's jelly
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910:Chorionic villi
876:Cytotrophoblast
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667:(1): 100–9107.
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379:Gross pathology
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364:BK polyomavirus
352:JC polyomavirus
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332:Giuseppe Simoni
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312:Giuseppe Simoni
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281:tubal pregnancy
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95:Chorionic villi
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33:Chorionic villi
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903:Decidual cells
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815:External links
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772:J Cell Physiol
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721:(3): 433–440.
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661:J Cell Physiol
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616:(3): 433–440.
610:J Cell Physiol
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507:Gray's Anatomy
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328:Biocell Center
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304:Main article:
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289:Hofbauer cells
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586:on 2012-09-21
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588:. Retrieved
584:the original
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563:. Retrieved
561:. 2009-10-22
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542:. Retrieved
540:. 2009-10-22
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271:Microanatomy
262:
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975:Circulatory
871:Trophoblast
362:. DNA from
360:miscarriage
215:trophoblast
194:Description
176:Development
60:Identifiers
1071:Embryology
1060:Categories
1003:Blastocoel
715:Hum Reprod
590:2010-01-11
565:2010-01-11
544:2010-01-11
486:References
426:Micrograph
407:Micrograph
342:Infections
324:stem cells
254:17–22 days
232:16–21 days
211:13–15 days
893:Allantois
318:Stem cell
265:pregnancy
222:Secondary
200:Contents
162:syncytium
132:Structure
110:pregnancy
982:Placenta
804:31549405
753:53106591
745:30590693
693:30078192
642:30078192
474:See also
240:Tertiary
227:mesoderm
1050:Anatomy
987:Chorion
898:Decidua
502:page 60
205:Primary
182:chorion
112:from a
103:chorion
71:D002824
47:Details
1036:Portal
929:cavity
919:Amnion
863:Embryo
802:
751:
743:
691:
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510:(1918)
996:Other
941:Fetus
749:S2CID
500:from
217:only
191:Stage
99:villi
82:[
800:PMID
741:PMID
689:PMID
638:PMID
354:and
247:and
180:The
97:are
66:MeSH
52:Days
924:sac
790:hdl
780:doi
776:235
731:hdl
723:doi
679:hdl
669:doi
665:234
628:hdl
618:doi
1062::
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Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
